“In this project guide, we show you how to make the popular DHT22 sensor. This DHT22 easily connects to a variety of microcontrollers to send digital temperature and humidity readouts. You can monitor temperatures on your phone, create an alarm to signal when humidity reaches a certain level, or simply read statuses on your computer.
TOOLS
- Bantam Tools Desktop PCB Milling Machine
- Computer with Bantam Tools Desktop Milling Machine Software installed
- Adafruit DHT-sensor-library installed
- Flat end mill, 1/32” (optional)
- Flat end mill, 1/64”
- Bit fan
- Alignment bracket
- Soldering iron
- Diagonal wire clippers
- USB cable
MATERIALS
- PCB blank, FR-1, single-sided
- Nitto tape, high-strength, double-sided
- DHT22 sensor, AM2302
- 4.7K resistor, 0805 SMD
- 1K resistor, 0805 SMD
- 0.1 uF ceramic capacitor,
- 0805 SMD
- LED, 5mm
- Male headers, 1x3 at 90º angle
FILES
- Humidity-Temperature-Sensor.brd file downloaded”